Add LibevConnection to README
Add LibevConnection to README

fkarb/pika-python3,reddec/pika,jstnlef/pika,shinji-s/pika,Tarsbot/pika,pika/pika,vitaly-krugl/pika,hugoxia/pika,zixiliuyue/pika,skftn/pika,vrtsystems/pika,Zephor5/pika,renshawbay/pika-python3,knowsis/pika,benjamin9999/pika